<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <script>
        var username="小杨哥";
        var age=29;
        var sex="男";
        var hobby="直播";
        // document.write("我是"+username);
        // document.write("<br>");
        // document.write("我的年龄是"+age);
        document.write("我是"+username+"<br>年龄"+age+"<br>性别"+sex+"<br>爱好"+hobby);
    </script>
</head>
<body>
    
</body>
</html>